Patents Assigned to Wabtec Holding Corp.
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Patent number: 8070002Abstract: A housing for a railway car draft gear assembly for cushioning buff and draft shocks includes a rear portion engageable with the rear stops of such railway car and a front portion configured for attachment to a coupler arm. Opposed ends of the front and rear portions are provided with complimentary flanges for removable attachment of the front portion to the rear portion with threaded fasteners.Type: GrantFiled: July 28, 2009Date of Patent: December 6, 2011Assignee: WABTEC Holding CorpInventors: David Meyer, Howard Sommerfeld, Michael E. Ring
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Patent number: 8070001Abstract: A housing for a railway car draft gear assembly for cushioning buff and draft shocks includes a rear portion engageable with the rear stops of such railway car and a front portion configured for attachment to a coupler arm. Opposed ends of the front and rear portions are provided with complimentary flanges for removable attachment of the front portion to the rear portion with threaded fasteners.Type: GrantFiled: July 13, 2009Date of Patent: December 6, 2011Assignee: WABTEC Holding CorpInventors: David Meyer, Howard Sommerfeld, Michael E. Ring
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Publication number: 20110266101Abstract: A parking brake assembly for a railway car includes a ratchet mounted for rotation on a threaded piston rod of a brake actuator and a holding pawl engageable with the ratchet for maintaining a push rod of the parking brake assembly to apply braking force when the air pressure is lost in the brake pipe and releasing the push rod to accordingly release the braking force when the supply of air pressure in the brake pipe is restored. An operating lever and a cylinder connected thereto are provided for selectively rotating the holding pawl. Valve is provided for supplying air pressure to and evacuating it from the cylinder. Release mechanism is provided for manually releasing the braking force. The parking brake assembly is employed with either truck-mounted or carbody-mounted braking system.Type: ApplicationFiled: July 6, 2011Publication date: November 3, 2011Applicant: WABTEC Holding Corp.Inventors: HOWARD SOMMERFELD, JONATHON MARLOW, MICHAEL J. MORIARITY, WAJIH KANJO, DAVID MEYER, BRADLEY ANDERSON, MICHAEL RING
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Patent number: 8049608Abstract: A system for determining a distance of travel of a brake cylinder piston includes a brake cylinder having the brake cylinder piston, a pressure transducer operationally coupled to the brake cylinder and configured to determine a pressure measurement within the brake cylinder, and a control module of an electrically controlled pneumatic (ECP) brake control system. The control module is operationally coupled to the pressure transducer and configured to convert the pressure measurement within the brake cylinder determined by the pressure transducer into at least one of a displacement time of the brake cylinder piston, an equalization pressure within the brake cylinder, a pressure build-up time within the brake cylinder, a pressure leakage from the brake cylinder, or any combination thereof.Type: GrantFiled: June 2, 2009Date of Patent: November 1, 2011Assignee: Wabtec Holding Corp.Inventor: Edward W. Gaughan
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Publication number: 20110259681Abstract: A parking brake assembly for a railway car includes a ratchet mounted for rotation on a threaded piston rod of a brake actuator and a holding pawl engageable with the ratchet for maintaining a push rod of the parking brake assembly to apply braking force when the air pressure is lost in the brake pipe and releasing the push rod to accordingly release the braking force when the supply of air pressure in the brake pipe is restored. An operating lever and a cylinder connected thereto are provided for selectively rotating the holding pawl. Valve is provided for supplying air pressure to and evacuating it from the cylinder. Release mechanism is provided for manually releasing the braking force. The parking brake assembly is employed with either truck-mounted or carbody-mounted braking system.Type: ApplicationFiled: July 6, 2011Publication date: October 27, 2011Applicant: WABTEC Holding Corp.Inventors: HOWARD SOMMERFELD, Jonathon Marlow, Michael J. Moriarity, Wajih Kanjo, David Meyer, Bradley Anderson, Michael Ring
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Publication number: 20110259680Abstract: A parking brake assembly for a railway car includes a ratchet mounted for rotation on a threaded piston rod of a brake actuator and a holding pawl engageable with the ratchet for maintaining a push rod of the parking brake assembly to apply braking force when the air pressure is lost in the brake pipe and releasing the push rod to accordingly release the braking force when the supply of air pressure in the brake pipe is restored. An operating lever and a cylinder connected thereto are provided for selectively rotating the holding pawl. Valve is provided for supplying air pressure to and evacuating it from the cylinder. Release mechanism is provided for manually releasing the braking force. The parking brake assembly is employed with either truck-mounted or carbody-mounted braking system.Type: ApplicationFiled: July 6, 2011Publication date: October 27, 2011Applicant: WABTEC Holding Corp.Inventors: HOWARD SOMMERFELD, Jonathon Marlow, Michael J. Moriarity, Wajih Kanjo, David Meyer, Bradley Anderson, Michael Ring
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Publication number: 20110251742Abstract: An end-of-train unit for a rear railroad car, including: a housing mountable to a portion of the rear railroad car; a visual data collection device in operative engagement or at least partially integral with the housing and having a field-of-view, wherein the visual data collection device is configured to obtain visual data representative of at least a portion of the area in the field-of-view; and a transmission device in operative engagement or at least partially integral with at least one of the housing and the visual data collection device and configured to transmit the visual data to a processing unit of a forward railroad car. A visual data collection system and method are also provided.Type: ApplicationFiled: April 9, 2010Publication date: October 13, 2011Applicant: Wabtec Holding Corp.Inventors: Carl L. Haas, John E. Halowell
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Patent number: 8033533Abstract: An air spring actuated brake assembly for a railway vehicle braking system is provided which comprises an air spring disposed between a mounting member for attachment to the rigid structure of the braking system and a push rod attached thereto for longitudinal movement in an outward direction upon actuation thereof to initiate a braking sequence of the railway vehicle braking system. The air spring actuated brake assembly of the present invention allows for improved control of the brake shoe forces including visual travel measurement indication which is especially desirable during light load conditions. Additionally the air spring actuated brake assembly of the invention allows for the visual inspection and simple replacement of an inflatable spring should an air leak in the actuator occur. Currently used brake assemblies employing cylinder type actuators may be retrofitted with the air spring actuator of the invention.Type: GrantFiled: August 21, 2003Date of Patent: October 11, 2011Assignee: WABTEC Holding Corp.Inventors: Michael E. Ring, Gary L. Voong, Eric S. Graves, Frank E. Tinch
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Patent number: 8033597Abstract: A transit vehicle glazing assembly comprises a window pane, a box-shaped first frame that surrounds the opening covered by the window pane, a second frame sized to fit within the space enclosed by the first frame secured to the window pane by an adhesive, an elastomeric strip positioned in the space between the flanges and a plurality of U-shaped clips securing the second frame to the first frame.Type: GrantFiled: April 1, 2009Date of Patent: October 11, 2011Assignee: Wabtec Holding Corp.Inventors: David C. Griffis, Peter Heidrich
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Patent number: 8011031Abstract: A toilet assembly is provided having a bowl assembly having an inlet, a wastewater outlet, and a water supply inlet having an inlet valve. The assembly includes an adjustable metering valve in fluid communication with the inlet valve and the inlet of the bowl assembly, and an accumulator in fluid communication with the inlet valve and disposed upstream of the adjustable metering valve. A fragmentation passage is provided in fluid communication with the wastewater outlet and disposed downstream of the wastewater outlet. The assembly includes jet assembly having an inlet in fluid communication with the inlet valve, and an outlet disposed upstream of the fragmentation passage. The water supply inlet is structured to deliver a quantity of water through the inlet of the bowl assembly, and a quantity of water to the jet assembly to remove wastewater from the fragmentation passage.Type: GrantFiled: June 9, 2008Date of Patent: September 6, 2011Assignee: Wabtec Holding Corp.Inventors: Charles O. Campbell, William E. Wood
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Patent number: 8006815Abstract: A parking brake assembly for a railway car includes a ratchet mounted for rotation on a threaded piston rod of a brake actuator and a holding pawl engageable with the ratchet for maintaining a push rod of the parking brake assembly to apply braking force when the air pressure is lost in the brake pipe and releasing the push rod to accordingly release the braking force when the supply of air pressure in the brake pipe is restored. An operating lever and a cylinder connected thereto are provided for selectively rotating the holding pawl. Valve is provided for supplying air pressure to and evacuating it from the cylinder. Release mechanism is provided for manually releasing the braking force. The parking brake assembly is employed with either truck-mounted or carbody-mounted braking system.Type: GrantFiled: January 30, 2008Date of Patent: August 30, 2011Assignee: WABTEC Holding CorpInventors: Howard Sommerfeld, Jonathon Marlow, Michael J. Moriarity, Wajih Kanjo, David Meyer, Bradley Anderson, Michael Ring
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Publication number: 20110203180Abstract: A solid skirt seal mounted to the bottom edge of a slide-glide door panel hinged to rotate about an axis generally parallel to the bottom edge of the door panel, a spring biasing the hinged skirt seal to rotate the lower edge of the skirt seal in a downward direction, and a flexible cover extending between the lower edge of the skirt seal and the lower edge of the door panel.Type: ApplicationFiled: April 22, 2009Publication date: August 25, 2011Applicant: WABTEC HOLDING CORP.Inventors: Peter Heidrich, David C. Griffis
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Patent number: 8000873Abstract: A braking system, including a brake control arrangement in operational communication with a braking arrangement for braking a vehicle, and a penalty power source to deliver current or power to the brake control arrangement through a brake interface circuit. The brake interface circuit includes a main positive current switch urged to a closed position and configured to open upon loss or interruption of a penalty hold-off signal, and a main negative current switch urged to a closed position and configured to open upon loss or interruption of a penalty hold-off signal. Upon opening of either of the main positive current switch or the main negative current switch, the braking arrangement will automatically brake the vehicle as controlled by the brake control arrangement.Type: GrantFiled: May 12, 2008Date of Patent: August 16, 2011Assignee: Wabtec Holding Corp.Inventors: Jeffrey D. Kernwein, James L. Fenske
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Patent number: 7981348Abstract: A method of making a compressible elastomeric pad from a preselected polymer material includes the steps of providing a preform including a substantially solid body having a predetermined cross-section disposed normal to a central axis of the preform and a pair of axial ends, each having a substantially flat surface disposed normal to the central axis and a central socket formed within at least one substantially flat surface. Next, providing a pair of forming plates, at least one of the pair of forming plates having a raised annular ring and an axially aligned cavity provided on one surface thereof. Then, positioning the preform between the pair of forming plates and axially aligning the exterior peripheral edge of the annular ring with a peripheral edge of a respective central socket. Finally, forming the pad and removing the pad from engagement with the pair of forming plates.Type: GrantFiled: May 1, 2008Date of Patent: July 19, 2011Assignee: WABTEC Holding Corp.Inventors: Ronald J. Sprainis, Michael E. Ring, Bradley Anderson, Jonathon Marlow
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Publication number: 20110172856Abstract: A train control system, including: a communication device associated with at least one control unit located on a first train; and a communication device associated with at least one control unit located on a second train; wherein at least one of the control units of the first train and the second train is configured to: (i) receive, at the associated communication device, an authority signal including data sufficient to identify one of the first train and the second train as a lead train and the other of the first train and the second train as a follower train; (ii) establish at least one peer-to-peer communication link between the communication devices of the lead train and the follower train; and (iii) exchange train data between the lead train and the follower train via the at least one peer-to-peer communication link. An on-board control unit is also disclosed.Type: ApplicationFiled: January 8, 2010Publication date: July 14, 2011Applicant: Wabtec Holding Corp.Inventor: Robert C. Kull
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Publication number: 20110147140Abstract: A brake actuator assembly for a railway vehicle braking system includes a pair of end members spaced apart from each other along a longitudinal axis of the brake actuator assembly, a hollow flexible elastomeric member, two peripheral flanges extending outwardly from ends of the hollow flexible elastomeric member. Two retaining members, apertures and fasteners are employed for attaching each peripheral flange directly to a respectively positioned end member. The brake actuator assembly is connected to a source of fluid under pressure enabling inflation of the flexible elastomeric member and initiation of a braking sequence of the railway vehicle braking system. The brake actuator assembly of the instant invention allows for improved control of the brake shoe forces including visual travel measurement indication which is especially desirable during light load conditions.Type: ApplicationFiled: January 26, 2011Publication date: June 23, 2011Applicant: WABTEC Holding Corp.Inventor: MICHAEL E. RING
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Publication number: 20110132093Abstract: A method and apparatus of recognizing the presence of a passenger in front of a door of a transit vehicle comprises directing an ultrasound transmitter/receiver at a volume of space adjacent the door, emitting an ultrasound pulse into the empty volume, recording and integrating intensity of the echoes and storing the integrated value as a standard value, repeatedly emitting an ultrasound pulse into the volume, and comparing the integrated values to the standard value.Type: ApplicationFiled: May 13, 2009Publication date: June 9, 2011Applicant: WABTEC HOLDING CORP.Inventors: James W. Citta, Robert Urman
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Publication number: 20110127125Abstract: The railway vehicle brake disc includes a cylindrical hub, friction ring, and bell-shaped flange connecting the hub with the friction ring. The cylindrical hub defines a central axis and has an axial width and an outer diameter. The surface at the outer diameter defines an outer hub periphery. The friction ring includes two opposed annular members each having an outer braking surface and an inner surface. The annular members are connected to each other by a plurality of fins extending from the inner surface of one annular member to the inner surface of the other annular member. The bell-shaped flange has an inner portion connected to the hub, an outer portion connected to the fins, and a radial portion connecting the inner portion to the outer portion. The hub, friction ring, and bell-shaped flange are formed integrally from a single material.Type: ApplicationFiled: November 30, 2010Publication date: June 2, 2011Applicant: WABTEC HOLDING CORP.Inventors: Glyn A. Finch, JR., Peter D. Mathern
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Patent number: 7946079Abstract: An electrically driven entryway activation system for opening and closing two spaced swinging doors hung on spaced rotating parallel door posts comprises a base plate extending between the door posts. Levers attached to each door post rotate in a plane parallel to the base plate. A low profile actuation system spaced between the levers comprises a center post, a sector gear journaled on the center post for rotation parallel to the base plate, and a low profile gearmotor mounted between the base plate and the sector gear. A low profile emergency manual mechanism is provided for unclutching the output pinion gear of the gearmotor.Type: GrantFiled: September 27, 2005Date of Patent: May 24, 2011Assignee: Wabtec Holding Corp.Inventor: Cary L. Brown
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Publication number: 20110095880Abstract: A method for establishing a predicted brake pipe pressure gradient is disclosed and generally includes installing an end-of-train unit on a railcar of an active train for sensing brake pipe pressure; installing a head-end-unit on a locomotive in the active train; transmitting brake pipe pressure data from the end-of-train unit to the head-end-unit; calculating predictive brake pipe pressure gradient between a first end of the brake pipe at the locomotive and a second end at the railcar; and displaying the predictive brake pipe pressure gradient for an observer in the locomotive.Type: ApplicationFiled: October 22, 2010Publication date: April 28, 2011Applicant: WABTEC HOLDING CORP.Inventor: Edward W. Gaughan